Question: Will ZnO and CuSO4 dissolve? Hypothesis: I think it will only dissolve with a chemical bond introduced like heat, especially for ZnO. For CuSO4, I think it will dissolve with just tap water in time; process may be able to speed by mixing or shaking the substance in water around.
Observation Answer ; Process of Iron and Sulfur being mixed together to make a mixture, FeS+2:
They started with a beaker of iron and sulfur. Secondly, mixed to make a mixture, (FeS+2). Thirdly, dumped mixture on the table. Then, heated a glass rod and stock a heated rod in the mixture. Fianlly, the mixture started burning and the top was red and around it wasblack, this indicates a chemical bond occuring. It stuck to the glass rod, allowing the FeS+2 to be picked up as one object. -Christine, Rachel, and Mason
Observations for Zinc Oxide Experiment
Zinc Oxide is a creamy milk-like fog.
The slowly it decreases it's color and the substance sinks to the bottom of the test tube. *
Filtering the Zinc Oxide takes a while to drain about a minute or two.
Concluding the substance coats the filter with a startch-like look.
Observations for Copper II Solfate:
As shaking the test tube the Copper II Solfate turns the water blue.
Slowly the water is dissolveing the substance, CuSO4.
Filterating the Copper II Solfate takes not long. The substance goes right through the filter, still blue.
Mrs. Laguna, our pictures were takening on the gray cannon camera! (:
thank youuu.!
Your welcome!
Kool-aid lab- 4/11/11
Mass of papper 1 gram + .5 gram = 1.5 grams
It turns red right away. Not opaque and you can see the particles on the tube still.
Mass of paper 1 gram + 1 gram= 2 grams.
It was darker this time and you can still see through it. Most of the particles dissolved right away but some were still there.
4/13/11 - Experiment; What happens when you add a certain amount of Kool-Aid to 10mL of water in a test tube?
Depending on the amount of substance you add the transparancy can be strong or their can be no transparency. If you look closely you can see each test tube has a different concentration of the Kool-Aid the one to the left has the least amount of Kool-Aid added the the water, .5g/mL. The middle test tube has 1.5 g/mL of concentration of the Kool-Aid. The test tube to the right has the most amount of concentration of the substance, Kool-Aid, 2 g/mL.
Notes to lab 4/19/11
Procedure:
1) Get the test tube. 2) Get the hot water bath started turn it on all the way. 3) Measure 10g of the solute. 4) Zero the triple bean balance. 5) Put paper on the triple bean balance. 6) Get a lab scope and tap the solute on to the triple bean balance. 7) Put solute in the test tube. 8) 10 mL of the solvent (water) 9) Stir the solution down and up in the hot water bath. 10) Once it is dissolved put it in the test tube rack. 11) Then open up data studio and put the sensor in the test tube. 12) Watch the test tube in till you see the crystals. 13) Finally, Once you see the crystals record the temperature and your finished.
Notes on Chemicals: 4/26/11
Calcium Chloride CaCl2
A salt of calcium and chlorine. It behaves as a typical ionic halide, and is solid at room temperature. Common applications include brine for refrigeration plants, ice and dust control on roads, and desiccation. Because of its hygroscopic nature, anhydrous calcium chloride must be kept in tightly-sealed air-tight containers. Soild at room temperture, Must be in closed container, Harmful if inhaled- keep away from face, Dissolves and reasles energy, and in foods but in small amount.
Sodium Bicarbonate- NaHCO3
Its uesed to help heartburn and indigestion. White solid that looks like its crystaling but its a fine powder. Slightly saltly taste, and its is baking soda. In toothpaste, and will decomposed at 70 celius and carbon dioxide.
Bromothymol Blue- C27H28Br2O5S
Harmful if swollowed, inhaled or touched. Used as a acid base indicated. It can be yellow-acid happen if CO2 is added, Green- neutral (ph 7.0), and Blue- (ph>7.0) base.
5/10/11 Lab of Balancing Chemical compond of A.)NaI and B.)Pb(No3)2
Question: How will the mass of the reactants compare to the mass of the products in a reaction that produces a solid precipitate?
Hypothesis: The mass of the products willbe more than the reactants.
IV: Mass of the Reactants (g) DV: Mass of the Products (g)
1. Take empty beakers place on balance 2. Two empty test tubes placed in the empty beaker on the balance beam. 3.Record 'Mass of glassware' .
A.) Mass of the glassware: 83.1 g
4. Use dropper put (up to 2 droppers full) in one test tube of NaI 5. Use dropper put (up to 2 droppers full) in other test tube of Pb(No3)2
B.) Mass of Reactants + glassware: 85.1 g
5. Flip both test tubes over and placing then back into the beaker. C.) Mass of Reactants alone (b-c): 4.2 g D.) Mass of products + glassware: 85.1 g E.) Mass of products alone (d-c): 4.2 g
Zinc Oxide ( ZnO)
- Treats diaper rash
- Minor burns
- Severly chaped skin
- And other minor burns
- Sun screen
- Make up
http://www.drugs.com/mtm/zinc-oxide-topical.htmlCopper (II) Sulfate (CuSO4)
http://cartwright.chem.ox.ac.uk/hsci/chemicals/copper_II_sulfate.html
Question: Will ZnO and CuSO4 dissolve?
Hypothesis: I think it will only dissolve with a chemical bond introduced like heat, especially for ZnO.
For CuSO4, I think it will dissolve with just tap water in time; process may be able to speed by mixing or shaking the substance in water around.
Observation Answer ; Process of Iron and Sulfur being mixed together to make a mixture, FeS+2:
They started with a beaker of iron and sulfur. Secondly, mixed to make a mixture, (FeS+2). Thirdly, dumped mixture on the table. Then, heated a glass rod and stock a heated rod in the mixture. Fianlly, the mixture started burning and the top was red and around it was black, this indicates a chemical bond occuring. It stuck to the glass rod, allowing the FeS+2 to be picked up as one object. -Christine, Rachel, and Mason
Observations for Zinc Oxide Experiment
Zinc Oxide is a creamy milk-like fog.
The slowly it decreases it's color and the substance sinks to the bottom of the test tube.
*
Filtering the Zinc Oxide takes a while to drain about a minute or two.
Concluding the substance coats the filter with a startch-like look.
Observations for Copper II Solfate:
As shaking the test tube the Copper II Solfate turns the water blue.
Slowly the water is dissolveing the substance, CuSO4.
Filterating the Copper II Solfate takes not long.
The substance goes right through the filter, still blue.
Mrs. Laguna, our pictures were takening on the gray cannon camera! (:
thank youuu.!
Your welcome!
Kool-aid lab- 4/11/11
Mass of papper 1 gram + .5 gram = 1.5 grams
It turns red right away. Not opaque and you can see the particles on the tube still.
Mass of paper 1 gram + 1 gram= 2 grams.
It was darker this time and you can still see through it. Most of the particles dissolved right away but some were still there.
4/13/11 - Experiment; What happens when you add a certain amount of Kool-Aid to 10mL of water in a test tube?![IMG_2401[1]](/file/view/IMG_2401%5B1%5D/219927068/369x246/IMG_2401%5B1%5D "IMG_2401[1]")
Depending on the amount of substance you add the transparancy can be strong or their can be no transparency. If you look closely you can see each test tube has a different concentration of the Kool-Aid the one to the left has the least amount of Kool-Aid added the the water, .5g/mL. The middle test tube has 1.5 g/mL of concentration of the Kool-Aid. The test tube to the right has the most amount of concentration of the substance, Kool-Aid, 2 g/mL.
Notes to lab 4/19/11
Procedure:
1) Get the test tube.2) Get the hot water bath started turn it on all the way.
3) Measure 10g of the solute.
4) Zero the triple bean balance.
5) Put paper on the triple bean balance.
6) Get a lab scope and tap the solute on to the triple bean balance.
7) Put solute in the test tube.
8) 10 mL of the solvent (water)
9) Stir the solution down and up in the hot water bath.
10) Once it is dissolved put it in the test tube rack.
11) Then open up data studio and put the sensor in the test tube.
12) Watch the test tube in till you see the crystals.
13) Finally, Once you see the crystals record the temperature and your finished.
Notes on Chemicals: 4/26/11
Calcium Chloride CaCl2
A salt of calcium and chlorine. It behaves as a typical ionic halide, and is solid at room temperature. Common applications include brine for refrigeration plants, ice and dust control on roads, and desiccation. Because of its hygroscopic nature, anhydrous calcium chloride must be kept in tightly-sealed air-tight containers. Soild at room temperture, Must be in closed container, Harmful if inhaled- keep away from face, Dissolves and reasles energy, and in foods but in small amount.Sodium Bicarbonate- NaHCO3
Its uesed to help heartburn and indigestion. White solid that looks like its crystaling but its a fine powder. Slightly saltly taste, and its is baking soda. In toothpaste, and will decomposed at 70 celius and carbon dioxide.Bromothymol Blue- C27H28Br2O5S
Harmful if swollowed, inhaled or touched. Used as a acid base indicated. It can be yellow-acid happen if CO2 is added, Green- neutral (ph 7.0), and Blue- (ph>7.0) base.Bromothymol Blue+Sodium Bicarbonate+ Calcium Cholride
4/29/11
Check out our video on the lab(:
http://www.youtube.com/watch?v=3VmETSgH0xE
5/10/11
Lab of Balancing Chemical compond of A.)NaI and B.)Pb(No3)2
Question:
How will the mass of the reactants compare to the mass of the products in a reaction that produces a solid precipitate?
Hypothesis:
The mass of the products willbe more than the reactants.
IV: Mass of the Reactants (g)
DV: Mass of the Products (g)
1. Take empty beakers place on balance
2. Two empty test tubes placed in the empty beaker on the balance beam.
3.Record 'Mass of glassware' .
A.) Mass of the glassware: 83.1 g
4. Use dropper put (up to 2 droppers full) in one test tube of NaI
5. Use dropper put (up to 2 droppers full) in other test tube of Pb(No3)2
B.) Mass of Reactants + glassware: 85.1 g
5. Flip both test tubes over and placing then back into the beaker.
C.) Mass of Reactants alone (b-c): 4.2 g
D.) Mass of products + glassware: 85.1 g
E.) Mass of products alone (d-c): 4.2 g